Improved vise



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INJEIERS, PHOTO-LITHGGRAPHER, WASHINGTON D C ilifdete.

@sind @Wina J `To all 'whom it mag/concern;

` Be it known that LJONAS D. BECK, of Liberty, inthe county of Tioga fand; State of Pennsylvania, `have invented -a new and valuable Improvement in `Vises; and I do hereby declare 4that the following l is afull, clear, and exact description vof theconstrucj Ition and operation of the same, reference being had "to the annexed drawing making apart ofthi's'; specilication, and to the letters and"figures of reference marked thereon. p t thi Figure 1 of thc'drawing islatop view of my invenlon. t j Figure 2"is afcentral vertical longitudinal section thereof. j 1 Figures 3, 4,5, 6, and 7 are details.

` My invention relates to bench-viss, and consists, mainly, in the construction and arrangement of cer- `ytain improvements desgnedto provide an automatic adjustment of -the jaws, to suit angular forms of any description, and to enable the vise to take `any desired bench, and 4telic adjusted toward or from the same `.with greatffacility in such a manner that the work f but at its side, according to the eonven'ienceiofthe workman.3 f The letter A of 'the drawing designates a workbench, in which is formed a socket for' the reception `.of aj hollow journal, a, of the base-plate B.

O represents a clamping-banplaced on the under p side of the-bench-to'p, and attachedto the base-plate Y 1i hy means of a bolt and nut,'c, whichis prevented from turning by the key or set-screw b.

` oentricfE, which is operated by a lever or handle, d, i and serves to draw the clamping-bar downward, there- `by securing the base-platein any desired position. v Alpin, e, is used to keep the clamping-bar from ro- 3. rating around the boltc. l f w Atransverse bar, F, is attached to the rear of theV base-plate, and serves as a Vseat `for the bent key g, S. provided with a. corrugated or frictional surface, and serving to fix the extension-bar D in any desired posi- Fihuches It, h are cast on the sides of the extensionf har D, above andbelow, whereby it is connected to the base-plate and to the rear jaw of the vise. G designates the rear jaw, within which is fastened,

by the pins It k, the nut n, through' which operates' the worm H. Sometimes, as an additional security,

the sectional washer i isintrodu'ced, butin operating a upon heavy work it willbe found advantageous to l relysolely upon the pins, which are made weaker than 1;] the other ``:more lcostly parts." By this arrangement, should an undue strain be produced on theparts, the

grt/ipnovsn vrsn.

in its vertical section.

l angular position with regard to the ,edge ofthe work-` `-may either lieabovc the bench, or not over it'at all,y

To the end of the clamping-bar C is pivoted an eci Jemen nnen, or LIBnnTrrnNNsYLvANLf-i.

Letters Patent No. 104,541, dated .Tune 21, 1870.v

` The Schedule-referred toin these Letters Patent and making part of the same,

l 4pins will break inpreferenee to another part, andboth time and expense will be saved in the repairingc Through-the jaw also, and above the worm, slides the guard-plate I,` which prevents damage to the worm V.froni the accidental falling of heavy work between the jaws, and provides a smooth bearing for the lowerend of the clampingfplate K.

The rear portion of the clamping-plate K is curved A vertical slot is formed in the center' of its upper p portion, th'rough which is passed thc'pin a', which connects it to the jaw proper'.

Rubber packing e'is placed in the opening of the jaw G, whereby a means is provided for holding thc shank ofthe pin without rendering its extraction difficult, should it `bc desired to remove the clampingplate.

tion nponthe guard-plate I. This clamp is only ad-` justablevertically andis so arranged that it will adapt itself automatical tto the` bevel ofthe work, whatever be its vertical inclination;

M designates the forward jaw, provided with a circular shoulder, m, arranged to revolve in a concspond ing circular depression in the upper surface ofthe head of the extensin-bar D. The .circular shoulder an isv concentric with the pin r, by which the jaw is fastened to the'bar D.

A key, s, is passed through the projecting end of the piu c', and is made weaker than the other parts, so that, in case of an undue strain, it will break, and thus save time and expense in the repairing.

The pin tV operates to' keep thc jaw in a position perpendicular to the line of movement. lVhen a latA orally-inclined surface is to be held, the pin is drawn up outofthe socketiu the bar I). "lhe jaw will then automatically 'adjust itself to the inclined surface, and

Vthereby keeping it place, while allowing free motion of revolution.

- The shank of thcworm passes through the head of the barD, and isA secured by a circular flanch, h, whose perimeter is toothed or cogged to correspond with the internal teeth in the cavity of the adjustable turningworm II,1and is provided with a pin, lr', within it, arv ranged to engage with the circular groove z of thel The foot of this plate is notchedfto' keep it in posiworm. By this arrangement the block I may bc readily disconnected from the toothed iianch of the worm.

When it is desired to remove the block entirely, it

should be turned until the pin 1" is brought opposite the notch in the fla-nchod end of the worm.

Under the head of the bar, and secured thereto by means of a pin and socket, is the block F', which serves as the attachment for the prop R.

' shaft s', turning in bearings in the block F', and resting onthe end of the prop R.

When the key g is inserted between the bar D and the scat F, the bar D is rendered stationary, and the rear jaw G will be movable.

By vremoving the key g, and inserting the keys b b" into the notches a" a in the bed-piece and jaw G, this jaw will be rendered stationary, and the bar D, bearing the forward jaw M, will become movable.

What I claim as my invention, and desire to secure by Letters Patent, is A 1. As an improvement upon the laterallyadjusta ble jaw of my vise patented October 26, 1869, the automatic laterally-adjustable jaw M, provided with the circular shoulder m, located near the pivot of said jaw, and scoured to its pivot-bolt byl the safety-key s, substantially as shown and described.

2. The automatic vertically-adjustable clamp K, 1 having pin a', in combination with the jaw G, having rubber' clamp e', and the guard-plate I, when constructcd and arranged to operate substantially as and for the purposes herein set forth.

3.-'lhe combination of the extension-bar D, guard I, nut n, with its safety-pins 7c 7c, worm H, bed-plate B, and keys g and b b", when constructed and arranged to operate substantially as specied.

4. In combination with a bench-vise, the clampingplatc B, having journal a, clamping-bar G, bolt c, connecting the two, and operating cam E, when coustructcd and arranged to operate as herein described and shown.

5. The adjustable turning-block P, having a toothed cavity and internal pin r, in combination withthe worm H, provided with cogged anch h, channel z, and notched Hauch at its end, when constructed and arranged to operate as and for the purposes herein subd stantially shown and described.

6. The adjustable prop R, having foot Y, with roller t', rotating on an elastic journal, z', and blockF, pro vided with cam-shaft s', when constructed and arranged to operate substantially as specified.

7. The improved vise herein described,.arranged to hold the work over or at the side of the bench, and pivoted thereto in such a manner as to take any angular position with regard to the edge of the bench, substantially as specitied.

In testimony that I claim the above, 1 have rhereunto subscribed my name in the presence of two witnesses.

J. D. BECK.

Witnesses I. B. WERLINE, I. L. 'DE .CoUnsxm 

